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Fracture incidence in nursing homes in Japan
K Nakamura1, M Oyama, S Takahashi
1Department of Community Preventive Medicine, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan. kazun@med.niigata-u.ac.jp
Summary
Fracture incidence in Japanese nursing homes is higher than in the general population for some fractures, necessitating targeted prevention strategies. Totally dependent individuals showed a lower risk for hip fractures.
Area of Science:
- Gerontology
- Epidemiology
- Bone Health
Background:
- Fracture incidence is a growing concern in Japan's aging population.
- Nursing home residents represent a vulnerable demographic for fractures.
Purpose of the Study:
- To determine the incidence of various fracture types in institutionalized elderly individuals in Japan.
- To compare fracture rates in this population with the general population.
- To identify risk factors for fractures in nursing home residents.
Main Methods:
- A 1-year prospective cohort study involving 8,905 nursing home residents (average age 84.3 years).
- Assessment of activities of daily living using Barthel's index and collection of demographic data.
- Fracture diagnosis confirmed via hospital medical records.
Main Results:
- Hip fracture incidence: 14.9/1000 person-years (women), 9.7/1000 person-years (men).
- Higher incidence of hip and upper-arm fractures compared to the general population; lower incidence of forearm fractures.
- Reduced hip fracture risk (Hazard Ratio 0.14) in totally dependent individuals.
Conclusions:
- Fracture incidence varies by type in institutionalized elderly; overall rates are higher than in the general population.
- Specific prevention strategies are needed for institutionalized elderly.
- Functional dependency influences hip fracture risk.
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